building Opencv 3.1.0 with cuda 8.0 in Ubuntu 14.04
I am trying to build opencv 3.1.0 with cuda 8.0 in ubuntu 14.04 1. I first installed cuda 8.0, and nvidia diriver: 375.26. 2. cmake: cmake -D CMAKE_BUILD_TYPE=RELEASE -D...
View ArticleSegmentation of warped text lines
I am trying to segment warped text lines found in photos taken from a page of a book (from the camera of a smartphone). This is meant as a preprocessing step before running OCR on them. I have found...
View Articleerror: (-215) sz.width % 2 == 0 && sz.height % 3 == 0 && depth == CV_8U in...
Good day guys, currently I am working on developing an android app which finds the biggest rectangle in camera preview in run time(To detect a page or a rectangular object) and perform OCR to it. I...
View Article3D reconstruction (SfM) - confusion with camera's extrinsic parameter
From two images (with known camera intrinsic parameter), I follow the usual pipeline to reconstruct its 3D points. In particular, I use the `cv2.findEssentialMat` and `cv2.recoverPose` function. From...
View Articlelinked list iterate within main for loop impacts face processing
Hi everyone. I'm using the following facerecognizer example. http://docs.opencv.org/2.4/modules/contrib/doc/facerec/tutorial/facerec_video_recognition.html Within the for loop in the main() function, i...
View Articleopencv 3.1 - CUDA 8.0.44 - ubuntu 16.04 - driver 367.57 - gcc 5.4.0
Couldn't find anyone with these compilation errors: As with the title I'm installing: opencv 3.1 - CUDA 8.0.44 - ubuntu 16.04 - driver 367.57 - gcc 5.4.0 I get to 70% build, when it fails in...
View ArticleORB match score and compare a Database
Hello everyone, I know this question has already been asked but i can't find any examples actually. I've got a database of cards (actually 3 but it will be over 20,000) and i need to find the best...
View ArticleOpenCV 3.1 custom OpenCL Queue
With OpenCV 3.1, when I use cv :: ocl :: attachContext for interoperation, a new queue is created. If I run an OpenCV function, it runs in its own queue, different from the main queue. Main question:...
View ArticleI need help for image classification
I have been using Discrete Fourier Transform for preprocessing method. Now for classification, I need to take Discrete Fourier Transform,assign label to DFT and then train KNN for the training...
View ArticleopenCV 2.4.9.1 sample creation works but gives error message
Hi everybody, I am currently working on training my own haar classifier. So here is my problem, As I start the creation of the .vec-File, opencv_createssamples prints following error-message:...
View ArticleI need to do image sequence after extracting frames.
I need to do image sequencing for each movement.I need to use a loop.For e.g,to recognise one movement I need to have 3 static movement in a row.But only one image is being recognised. Below is my c++...
View ArticleI want to get the bright area of my picture(opencv3 Blob Detection)
- I am using opencv3, - and I want to "circle" the bright area of the picture I read by using - Blob Detection> Be more specific, I want to "circle"> **the biggest red area.** ) and then I would like to use OpenCV 3.1 to locate and count the...
View Article